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Re: Pentium 75 machine not POSTing, is the lack of a Dallas RTC the problem?

great to hear you are getting it going. Regarding ebay sourced RTC modules, just be aware it is a bit of a crapshot. You may get an RTC with years of life in it, or one that is virtually flat, you just don't know. Very true ! My last few batches bought came from Digikey and Quest Components and all …

Re: Pentium 75 machine not POSTing, is the lack of a Dallas RTC the problem?

great to hear you are getting it going. Regarding ebay sourced RTC modules, just be aware it is a bit of a crapshot. You may get an RTC with years of life in it, or one that is virtually flat, you just don't know. Yeah, I was always somewhat aware of that, I'm trying to monitor how the system runs …

Re: Pentium 75 machine not POSTing, is the lack of a Dallas RTC the problem?

Great news, the replacement showed up in the mail yesterday, I placed it in the newly-fitted socket, and turned the computer on, and it was indeed the lack of an RTC chip that was the problem, the computer is POSTing once again, and the chip seems to hold a charge, although we'll see how long that …

Re: Pentium 75 machine not POSTing, is the lack of a Dallas RTC the problem?

[...] Not actually entirely sure that it was NOS, I was just assuming that, given it was $2, but maybe it was a brand new one. I guess I'll have to try it in the board and see what happens. I'll probably ultimately end up getting one of the replicas that you mentioned. It could also be plain used, …

Re: Pentium 75 machine not POSTing, is the lack of a Dallas RTC the problem?

I agree that a brand new module is the best option, however TRUE new old stock isn't terrible either. The clock doesn't run on brand new modules until it's booted for the first time so the shelf life is very long Well, that'd be encouraging, not sure if the module is NOS or brand new. Ultimately, I …

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